Means for attaching metallic roofing-sheets.



No. 673,229. Pa cented Apr. 30, mm. c. H. WINDLE.

MEANS FOR ATTACHING METALLIC ROOFING SHEETS.

[Applicatiun filged Dec. 7, 1899;)

UNrrnD STATES FFICE.

PATENT CHARLES HOWARD WINDLE, OF CALCUTTA, INDIA.

SPECIFICATION forming part of Letters Patent No. 673,229, dated April 30, 1901.

Application fil d December 7, 1899. Serial No. 739,563. illo moclel.)

To (LZZ whom it may concern:

Be it known that LGHARLEs HOWARD WIN- -DLE, a subject of the Queen of Great Britain,

residing at Calcutta, India, have in vented cer-' tain new and useful Improvements in Means for Attaching Metallic Roofing-Sheets; and I do hereby declare the following to be a full,

roof for any purpose whatsoever without in jury thereto or to the adjacent sheets or plates forming the roof.

My invention consists in the novel devices hereinafter described and claimed, and will be understood by reference to the accompanying drawings, wherein the same parts are indicated by the same letters throughout the several views.

Figure l is a fragmentary view of a portion of a roof structure provided with my invention, the view being partly in section and partly in elevation. Fig. 2 is an enlarged cross-sectional View of a purlin, showing one of my improved attaching-hooks secured thereto. Fig. 3 is a view, partly in elevation and partly in section, on the line 3 3 in Fig. 1, showingthe relative positions of the adjacent edges of two metallic roofing-sheets and showing a packing between the same; and Fig. 4 is a perspective View of the book made according to my invention for securing the edges of the roofing sheets or plates.

In Fig. l, A represents one of the rafters across which are seen red'angle-irons or bracket-s A, provided with bolt-holes therethrough.

B represents the purlins, which are in the form of angle-irons and are secured along one element (2 thereof to the angle-irons or brackets A, as seen most clearly in Fig. 2. The

other element 1) of the purlins extends at right angles above the brackets or angle-irons A, to which the said purlins are secured, as above described.

The securing-hooks O are formed with flat shanks C perforated, as at 0 for the passage of bolts D, by means of which the shanks of the said hooks are secured flat against the outer side of the element 1) of the purlin, the said bolts passing through the purlin and its supporting-bracket, as well as through the hooks, thus secu ring the parts firmly together. The body of each hook is formed with two parallel elements 0 and G at right angles to the shank 0, and these elements are preferably cylindrical in form, as shown, to more readily grip the sheeting, by reason of the latter being formed with curved corrugations. The length of the shanks of the hooks O and the relative positions of the bolt-openings 0 therethrough are so arranged that when the finished hooks are secured in position upon the element bof the purlin B a space sufficient for the reception of the edge of one of the roofing-sheets will be left between the under side of the lower element 0 of the hook and the element 1) of the purlin B, as seen mostclearly at e in Fig. 2. The space at 6* between the two elements 0 and (J of the body of the hook 0 should also correspond with the thickness of the roofing-sheet which is to be insertedin this space e between the two elements 0 and O of the hook.

In practice the lower edge of each sheet E engages a suitable number of attaching-hooks C in the space e between the elements 0 and 0 thereof, and the upper edge of the same roof-sheet engages in the spaces 6 between the lower elemeut C of the next upper row of hooks and the parallel element 19 of the corresponding purlin B, or in the case of a sheet such as F, (shown in Fig. 1,) used at the angle of the roof the opposite edges of the said sheet would engage between the two ele'ment'sC' and C of the two rows of hooks attached to the purlins upon opposite sides of the said angle and next adjacent thereto.

The size of the hooks C and the spacing of the elements 0 and C from each other, as well as the spacing of the element 0 from the parallel element b of the purlin, will be arranged and controlled to suit the thickness of the roofing-sheets, the relations, however, being maintained practically the same in all cases irrespective of the thickness of the sheets. The number of hooks used for each roofing-sheet E will depend upon the width of the sheet; but there should be at least two of such hooks at either of the opposite edges of the sheet. I

To avoid all possibility of wind or water ontering the space between the upper edge of.

one tier of sheeting and the lower edge of the next adjacent tier of sheeting where the two edges overlap, a strip of felt or other suitable material, as shown at H in Fig. 3, may be inserted between the two adjacent edges of the sheeting, or the spaces may be leftopen, if desired, for the purposes of ventilation.

Among the'advantages arising from the use of the means hereinbefore described for secur ing the roofing-sheets to the purlins are prin- 4 cipally the following: The initial cost of erecting a corrugated iron roof or shed is minimized in that no rivets or wind-ties are re-.

quired. There is a considerable saving of time and labor in erecting such a roof or shed.

myinvention will be apparent-to any practical mind.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

1. In a roofing structure, the combination with the rafters; crossbeams secured to the rafters, and purlins in the form of anglebeams supported upon said cross-beams; of metallic hooks mounted upon said purlins and having perforated shanks; bolts passing through the shanks of said hooks and through the said purlins and cross-beams, and securing these members to each other, substantially as described.

2. In a roofing structure, the combination with the rafters; cross-beams secured to the rafters, and purlins in the form of anglebeams supported upon said cross-beams; of metallic hooks mounted upon said purlins and having perforated shanks; bolts passing through the shanks ofsaid hooks and through the said purlins and cross-beams, and securing these members toteach other, said hooks,

having parallel jaws also parallelwith the upper face of the purlins,substantially as described.

3. ha roofing structure, the combination with the rafters; angle-beams arranged crosswise of the rafters and secured thereto, and purlins in the form of angle-beams supported upon said angle-beams; of metallic hooks mounted upon said purlins andhaving'perforated shanks; bolts passing through the shanks of said hooks and througlrthesaid purlins and angle-beams and'securing these members to each other, substantially as described.

In testimony whereof 'I affix iny-signature in presence of two witnesses.

CHARLES HOWARD WINDL-E.

Witnesses:

P. O. BENELEY, J. B. BAXTER. 

